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Installation and connection
All installation, plumbing, and electrical work must be carried out by qualified
personnel only.
Location and installation
Installation of the EWH should be performed in accordance with the marking indicated on the
enclosure and the following table:
Volume, (l)
Location
Marking
N 10 O, N 15 O
10, 15
Vertical, nipples down
It is recommended to install the EWH as close as possible to the place of use of hot water in order to
reduce heat losses in the pipes. The EWH is hung by the brackets of the enclosure on the hooks of the
anchors (supplied with the EWH) fixed in the wall.
Installation of hooks in the wall should prevent spontaneous movement of the EWH brackets along
them. When choosing the installation site, the total weight of the EWH filled with water must be taken
into account. Wall and floor with a low supporting capacity should be strengthened accordingly. To
maintain the EWH, the distance from the protective cover to the nearest surface in the direction of the
axis of the removable flange must be at least 0.5 meters.
In order to avoid harming the property of the customer and (or) third parties in the event of a faulty hot
water supply system, it is necessary to install the EWH in rooms that have waterproof floors and drain
to the sewage system, and not to place items exposed to water under the EWH. When placing the
EWH in unprotected rooms, it is necessary to install a safe tray underneath (not supplied with the
EWH) properly drained to the sewer.
In the case of placing the EWH with difficult access for technical and warranty maintenance
(mezzanines, niches, inter-ceiling spaces, etc.), installation and dismantling of the EWH will be
performed by the customer independently or at his or her expense.
Water connection
It is necessary to supply cold water to the EWH using at least 200 μm primary filter.
Install the safety valve (5) at the inlet of the cold water (3) – the nipple with the blue ring, for 3,5 – 4
turns, ensuring tightness of the connection with any sealing material (flax, FUM tape, etc.).
The safety valve is a non-return valve which prevents water from entering the water supply system
from the water heater in case of pressure drop in the former, and in cases of increasing pressure in the
tank with strong water heating, and also the safety valve relieves excess pressure in the tank when
the water is heated up strongly. During operation of the water heater, water can leak from the safety
valve drain pipe (7) to relieve excess pressure, which occurs for the safety of the water heater. This
drain pipe should remain open to the atmosphere and be installed permanently down and in a non-
freezing environment.
WARNING! It is forbidden to operate the EWH without a safety valve or use a valve of
other manufacturers.
It is necessary to ensure the drainage of water from the drain pipe of the safety valve to the sewage
system, providing an appropriate drainage (8) during installation of the EWH.
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